Dual action toilet flush valve



FIG. 1 is a front elevational view of the dual action toilet flush valve showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken line representation of connectors in FIG. 1 and 3 are for purposes of illustration only and form no part of the claimed design. 

The ornamental design for a dual action toilet flush valve, as shown and described. 